I don't think its the company as much as the nature of the product.

Fiber is simply in a completely different universe of quality compared to DOCSIS & DSL.

AT&T is literally the worst thing on earth... unless you have access to their fiber offerings. Then it might be among the best. I can get 5gbps in my area now but I don't bother. Internet is solved for me as far as I am concerned now.

I'm trying to get 5Gbit just as a way to upgrade the homelab. 5gbit firewall and routing requires a lot of new toys :)

I don't know. I know that I despise Comcast, although my problem with them isn't the actual service itself. That's been great. My problem is dealing with them as a company.

If I had any other option, even one with worse service, I'd switch away in a heartbeat if the new company were easier to deal with.

I have CenturyLink 940Mbps up and down fiber, and have not had a single issue in 5+ years. Never talked to them outside of the installation.

But the satisfaction is because it’s symmetric fiber. I’m sure CenturyLink DSL is garbage, just like Comcast coaxial.

Yes, I'm happy with their gigabit fiber product specifically. I can't comment on other products.